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Percutaneous Radiofrequency Ablation of Malignancies in the Lung

Damian E. Dupuy1, Ronald J. Zagoria2, Wallace Akerley1, William W. Mayo-Smith1, Peter V. Kavanagh2 and Howard Safran3

1 Department of Diagnostic Imaging, Rhode Island Hospital, Brown University School of Medicine, 593 Eddy St., Providence, RI 02903.
2 Department of Radiology, Wake Forest University School of Medicine, Medical Center Blvd., Winston-Salem, NC 27157.
3 Department of Oncology, Rhode Island Hospital, Brown University School of Medicine, Providence, RI 02903.



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  		Fig. 1. —45-year-old man with inoperable lung cancer who presented with biopsy-proven local recurrence.

A, CT scan of chest shows recurrent neoplasm (arrow) in radiation field after initial complete response with chemoradiation therapy.

 


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  		Fig. 1. —45-year-old man with inoperable lung cancer who presented with biopsy-proven local recurrence.

B, CT scan obtained during radiofrequency (RF) ablation shows position of electrode in mass.

 


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  		Fig. 1. —45-year-old man with inoperable lung cancer who presented with biopsy-proven local recurrence.

C, Supine CT scan obtained immediately after RF ablation and removal of electrode shows increased parenchymal density and peripheral ground-glass opacity around tumor corresponding to lesion induced by RF heat. Note absence of pneumothorax.

 


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  		Fig. 1. —45-year-old man with inoperable lung cancer who presented with biopsy-proven local recurrence.

D, CT scan obtained at same level as C 6 weeks after C shows mass has become smaller and retracted toward hilum.

 

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